J.P. Morgan & Co.'s Internet blitz continues. The investment bank invested $10 million in Competix.com, a Burlingame, Calif., company that aids banks in verifying credit histories online. The $10 million gives J.P. Morgan a 9% stake in Competix.com. Earlier this year, New York-based J.P. Morgan launched a $1 billion fund to invest in financial start-ups. Other investors, including Trans Union L.L.C., Chicago, contributed an additional $5 million.